Grumpy Ghost OC - Undertale

That moment when you accidentally revamp an extremely old doodle into an OC for a game that's fallen out of its height of popularity that also you haven't even touched in forever.
Well, this is the second of the promised, and late, April Fool's submissions I had prepared, and it's the most embarrassing in ways (that I don't want to outline now, might make people suspicious. X3). I must tell now that I'm in the middle of cleaning out and redrawing/repurposing my piles and piles of old drawn pictures. When doing so, actually looking for material for the next picture I've got coming, I came across an old doodle on the back page of one paper of the Pile of a ghost (one of the old "floating-sheet" kinds of buggers) that was just totally not having this scaring shit anymore. I decided to throw that pic on the pile for the next deviation I've got coming when it hit me how perfect that idea would be to make into, of anything, an Undertale OC... or at least an idea for one.
So we've now got this bastard, I like to call him "Grumpstablook," keeping with the fan naming conventions for ~every~ ghost. The idea behind him is that he's just old-like and ornery that a simple ghost like him just can't get the scares anymore, what with all the new-fangled and horrifying games, movies, and junk that's out there. Now he just grumbles and complains about it, floating off when people bother him or when, inevitably, his trying to spook passersby fails.
I just imagine that the right pic is him when he just gives up in the middle of a scare attempt: "Boo- aw, screw it." X3
Now you get this tiny little reference pic for this guy. I'm gonna leave it here, as I have one more pic to get to.

Undertale (c) Toby Fox